Is PRSS1 p.Cys64= (c.192C>T) pathogenic?

PRSS1 p.Cys64= (c.192C>T) is classified Likely benign in PRSS1 (ClinVar, Single submitter, 1 submitter; last evaluated 2019-11-11). Very rare (popmax 0.00446%, eas); Associated with hereditary chronic pancreatitis.

What condition is associated with PRSS1 p.Cys64= (c.192C>T)?

PRSS1 p.Cys64= (c.192C>T) is associated with hereditary chronic pancreatitis (ClinVar).

How common is PRSS1 p.Cys64= (c.192C>T) in the general population?

PRSS1 p.Cys64= (c.192C>T) is very rare (popmax 0.00446%, eas) (gnomAD).

PRSS1 p.Cys64=

Q: How is Autosomal dominant hereditary chronic pancreatitis inherited?

Typically Autosomal dominant (Orphanet). A genetic counselor can assess individual risk for a family.

c.192C>T · rs1261676877 · VCV1782837

Likely benign Single submitter

Classification

Likely benign

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

gnomAD v4.1

Rare

very rare (popmax 0.00446%, eas)

Conditions

hereditary chronic pancreatitis

⚠ Built without this gene's context — gene constraint and dosage, protein structure, pathways, panels and related-variant links were not looked up for this page. why

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Splicing
SpliceAI	—	not looked up on this page · why
Constraint at this position
Conservation	phyloP 2.5	GERP 1.7, phastCons 1
Overall
CADD	13.96	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.00446% East Asian · 2/44,874 alleles

Filtering AF 0.000739% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.000276%

Overall 0.00031% 5/1,613,902 alleles · very rare exomes 3/1,461,652 · genomes 2/152,250 · joint denominator

Ancestry group	Frequency	1 in
East Asiangrpmax	0.00446%	22,437
European (non-Finnish)	0.000254%	393,277

Rarity supports pathogenicity (ACMG PM2); frequency above a disease-specific BA1/BS1 threshold argues against it. A variant frequent in one ancestry group can be near-absent in others, so a single global figure can mislead.

Variant & gene context

Gene: PRSS1
Protein: p.Cys64=
Coding: c.192C>T
MANE Select: NM_002769
dbSNP: rs1261676877
Type: single nucleotide variant
Location: chr7:142750706 (GRCh38)

Full PRSS1 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

hereditary chronic pancreatitis — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

For Autosomal dominant hereditary chronic pancreatitis (Orphanet):

Inheritance: Autosomal dominant
Onset: Adolescent, Childhood
Prevalence: 1-9 / 1 000 000 (France)

Built on 18 open, versioned datasets — ClinVar, gnomAD, AlphaMissense, REVEL, ClinGen & more — plus Sugi Variant's own cross-source analysis. Source data 2026-01–2026-10, ClinVar 2026-10. Full sources & versions →

Cite Sugi Variant

Gür T. Sugi Variant: A Deterministic Per-Variant Germline Reference from a Knowledge Graph for Humans and AI Agents. 2026. doi:10.5281/zenodo.21509445. This variant: https://sugi.bio/variant/prss1-p-cys64 (accessed [today's date]).

Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown